gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1983.047.343.20 References for, and Updating of, L. J. Spencer's First and Second Supplementary Lists of British Minerals Macpherson H. G. Department of Geology, Royal Scottish Museum, Edinburgh EH1 1JF 6 1983 47 343 243 257 6 7 1982 Copyright © 1983, The Mineralogical Society 1983